- Description
Details
The Ashly Pema 4250 DSP Processor is a Protea-Equipped Media Amplifier—either 4-channel at 250 Watts per channel. Pema is a matrix mixer—all Pema models have a full 8-in x 8-out matrix mixer, where any input can be assigned to any output or outputs. Pema is a digital signal processor. In addition to the full Protea suite of DSP settings, we have added four new features to Pema—gain sharing automatic microphone mixing, an automatic feedback suppressor, ambient noise detection and adjustment and a real-time clock with an event scheduler.
Pema features Ashly's energy efficient Class-D amplifier topology with a switching power supply—and is over 80% energy efficient out of the box. Maximize the energy efficiency of your audio system by using the event scheduler to either put the Pema in stand-by mode or turn it off completely.
- Features
Features
- 8 built-in mic pre’s
- CobraNet® and Dante® network audio fully supported
- Gain sharing automatic microphone mixing (Automixer)
- Automatic feedback suppression
- Ambient noise compensation
- Dedicated telephone/PBX input
- Dual RCA and balanced euroblock inputs
- Post DSP AUX line level outputs
- Stereo summed to mono
- Event scheduling (RTC)
- Adjustable HP/LP filters
- Built-in pink/white noise & sine wave generator
- Full suite of Ashly Protea DSP
- Hot-plug DSP placement
- 96kHz or 48kHz sample rate
- 32-Bit SHARC DSP
- 24-Bit A/D–D/A audio resolution
- 15V phantom power for mic inputs
- Full control using Ashly software over 10/100 baseT Ethernet
- Easy and intuitive user interface
- Automatic DHCP network IP configuration
- Euroblock connectors for preset recall, DC remote level control and serial data control
- External control via Ashly standard wall remotes, Ashly Ethernet wall remotes or Ashly Remote iPad® App
- Level control via variable DC control voltage
- Stand-By mode activation via contact closure
- Multi-level Security Safety/Compliance: cTUVus, CE, FCC, RoHS
- Specification
Power Output Per Channel 4Ω 20Hz-20kHz 1%THD 250W Line Current Draw (120V, all channels driven) Line Current, Standby Mode 190ma Line Current, Idle (no signal) 540ma Line Current, Typical (1/8 power pink noise) 2.85A Line Current, Maximum (1/3 power sine wave) 3.00A Thermal Dissipation (all channels driven) BTU/hr, Standby Mode 46.7 BTU/hr, Idle (no signal) 123 BTU/hr, Typ (1/8 power pink noise) 341 BTU/hr, Max (1/3 power sine wave) 378 General Input Sensitivity (low Z models) 6.2dBu Voltage Gain (low Z models) 26dB Voltage Gain (100V models) 35dB Damping Factor (8 ohm load, <1kHz) >250 Distortion (SMPTE, typical) <0.5% Distortion (THD-N, typical) 8Ω 10dB below rated power <0.5% (20Hz - 20kHz) Channel Separation (dB from full output, 1kHz) -80dB Signal to Noise (20Hz-20KHz, unweighted) >102dB Frequency Response 20Hz-20kHz, +/-1dB Mic/Line Input Impedance 4.8K Mic/Line Maximum Input Level +21dBu Mic/Line Preamp Gain 0, +20dB, +40dB, +60dB Mic/Line Phantom Power +15V, channel Summed Mono Input Impedance 3.16K Summed Mono Maximum Input Level +11dBu TEL-PBX Input Impedance 3.9K TEL-PBX Maximum Input Level +21dBu Preamp Output Maximum Level +8dBu AUX Output Maximum Level +20dBu Balanced Mic/Line Input Connector Euroblock 3.5mm Unbalanced Summed Mono Input Connector Dual RCA Channel 1 TEL-PBX Input Connector Euroblock 3.5mm Preamp/AUX Output Connector Euroblock 3.5mm Speaker Output Connector Euroblock 7.62mm Dimensions (H x W x D) 3.50" (89 mm) x 19" (483 mm) x 16.84" (428 mm) Unit Weight 23.5 lbs (10.7 kg) Shipping Weight 30.9 lbs (14 kg) - Documents
Documents
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